Abstract: An expansible head safety climbing chock has a three-part expansible head with an arcuate outer circumference and teeth extending around the circumference of both the wedge-type expansible head pieces and the inner end of a rigid body through which the safety rope or cable passes to the largest head piece. The expansible head safety chock is designed to be used in drilled holes in rock faces from which it is easily removed during non-use for aesthetic and safety reasons.

Abstract: An ice piton assembly used for ice climbing comprising a hollow tube onto which a strike absorbent ear capable of being hammered is fitted and secured into a prenotched section of said tube so as to impart the force of the blow down the approximate center of the tube. At one end of said tube is a swivel assembly that rotates in one position and is fitted in the other and to which the climber attaches the rope. The ice piton has a feature particular to the demands of climbing in that the swivel assembly adjusts to assure the most effective downward pull regardless of the position of the piton.

Abstract: A system is shown for providing a course layout to simulate rock climbing comprising metal tracking and hand and foot holds, with means for securing the holds to the tracking. The tracking may be arranged in various directions and orientations and may be secured to both walls and ceilings. Three different types of holds are disclosed: the sliding plate hold, the hinge hold and the jam hold. Each is designed to provide a means for grasping, supporting or gaining leverage by a climber as he proceeds along the course layout. Further, each type of hold has means for attaching an artificial rock outcropping which additionally simulates conditions encountered in rock climbing. Thus, the invention helps to create certain physical characteristics of rock formations that one may encouter while rock climbing.

Abstract: An improved climbing anchor utilizing multiple cam elements in which each cam element is independently spring biased by a flat spiral spring located within a recess in the cam element and acting between the pivot mounting and the cam element. The construction provides a more compact camming head assembly, a stronger climbing anchor, more positive action of the spring biasing means and an improved visual appearance.

Abstract: An adjustable chock having a biforcated handle (20) with a shaft (30) tensionally positioned between the forks in closed loop fashion. Three opposed cams (34) with teeth on the periphery are positioned on the shaft (30) and spring loaded to rotate to their widest point of separation. A pull rod (40) is slideably located within a slot (28) in each fork of the handle (20) with a connecting link (42) pivotally attached on one end to the link and on the other to the cam (34). When the pull rod (40) is manually retracted, the cams (34) are rotated to their minimum width for insertion into a rock fissure and when released spring loadingly return to the open position for gripping the internal surface in a chock like manner.